Frame for conveyer-belts



(No Model.)

R. OLIVER.

FRAME POR GONVBYER BELTS.

110.452,191. Patented May 12,1891.

. zia/ mmnnnllnmImm1 e1 FFICE@ ArnNr REV ILO OLIVER, OF OI'IATSIVORTI-l, ILLINOIS.

FRAME FOR CONVEYER-BELTS.

SPECIFICATION forming part of Letters Patent No. 452,191, dated May 12, 1891.

Application filed February 14, 1891.

T0 @ZZ whom it 71mg/ concern:

Be it known that I, REVILO OLIVER, of Chatsworth, in the county of Livingston and State of Illinois, have invented certain new and useful Improvements in Frames for Conveyer-Belts; and I do hereby declare the following to be a full, clear, and exact description ofthe invention, such as will enable others skllled in the art to which it appertains to make and use the same.

My invention relates to an improvement in endless conveyer-belts for harvesting and other machines, the object of the invention belng to provide simple and efficient means whereby to maintain the proper tension of the belt.

A further object is to construct an endless conveyer-belt and frame carryingthe same, so that the belt may be tightened without the employment of a tool of any kind.

A'further object is to provide simple and efficient means for yieldingly supporting` one roller over which the belt passes.

A further object is to provide simple meansl for yieldingly supporting one roller over which an endless belt passes, and so that both ends of said roller will move in unison, and thus maintain the belt in its proper position.

Vith these objects in view the invention consists in the combination, with a frame, of a roller yieldinglysupported therein at one end, a pipe or casing carried by said frame, a spring in said pipe or casing, and a yoke connected to the jouruals of the yielding roller and passing through the pipe or casing and bearing against the spring; and the invention also consists in certain novel features of construction and combinations and arrangements of parts, as hereinafter set forth, and pointed out in the claims.

In the accompanying drawings, Figure lis a plan view illustrating my invention. Fig. 2 is a longitudinal sectional View of the same on the line a: x of Fig. l. Fig. 3 is a separate view of the yoke which carries the yielding roller.

A represents a rectangular frame comprising longitudinal timbers a a and cross-bars b b', connecting said longitudinal timbers at points intermediate of their length. In one end of the frame a roller c is mounted in the Serial No. 381,470x v(No model.)

longitudinal timbers a and has one of its journals extended for the reception of a gearwheel or band-pulley d, by means of which motion may be transmitted to said roller. The other ends of the longitudinal timbers d are provided with slots cin their inner sides for the reception of the journals dof aroller O.

Secured in a recess in the cross-bar h is a cap e, preferably having its inner wall screwthreaded for the reception of a pipe or casing D, in which a spring E is located, the other end of said pipe or casing being also provided with a cap c. At ,its forward end the pipe or case D is provided with slots f, and through these slots a yoke F, preferably iat and of metal, is passed and adapted to bear against the spring E. At the point where the yoke F passes through the pipe or casing D it is thickened or provided on opposite sides with washers g, so that said yoke will be made to work evenly in the pipe or case D, or, in other Words, so that one end of said yoke cannot move faster or to a further extent than the other. The free ends of the yoke F are pro vided with perforations for the reception of the journals of the roller C, which pass loosely through said perforations. The endless belt G is passed over the rollers c C, as usual. By constructing the frame and supporting-rollers of an endless conveyer, as above set forth, said belt will be maintained always taut, and any undue strain brought to bear ou it will be compensated for by the yielding roller, or, more properly speaking, by the spring E.

A device thus constructed is very simple, cheap, and easy to manufacture and effectual in the performance of its functions.

It is evident that slight changes might be made in the details of construction of my invention without departing from the spirit thereof or limiting its scope. IIeiiceI do not wish to limit myself to the precise details of construction herein set forth; but,

Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. The combination, with a frame, of a roller yieldingly supported therein and a roller mounted in iiXed bearings, a pipe or casing carried by said frame, a spring in said pipe or casing, and a yoke connected to the jour- IOO n als of the yielding roller and adapted to beur on the spring in the easing, substantially :is set forth.

2. he combina-tion, with i frame, :L roller mounted in fixed bearings it one end ol' Said frame and a roller mounted in the other end und adapted to slide,'of a pipe or easing, a cap secured to the frame and adapted to receive one end of said pipe or easing, a spring in said pipe or casing, e cap on the other end of the pipe or casing, and a yoke adapted to pass through slots in the pipe or easing and bear on the Sp1ing,said yokebeing connected at its free ends to the journals of the sliding roller, substantially as set forth.

3. The combination, with a frame, a roller mounted in fixed bearings at one end of said frame und u roller mounted :in the other end REVILO OLIVER.

Witnesses:

A. F. OsBonN, W. W. SEARS. 

